<div class="loading"></div>

<style>
.loading {
  position: relative;
  width: 30px;
  height: 30px;
  border: 2px solid rgba(255, 87, 34, 0.2); /* 橙色半透明 */
  border-top-color: #FF5722; /* 活力橙色 */
  border-radius: 100%;
  animation: circle infinite 0.75s linear;
}

@keyframes circle {
  0% {
    transform: rotate(0);
  }
  100% {
    transform: rotate(360deg);
  }
}
</style>
